TY - GEN
T1 - Steady-state response of a high-strength moment-resisting steel frame-self-centering steel plate shear wall system
AU - Xie, Chuandong
AU - Wang, Xiantie
AU - Vasdravellis, George
N1 - Funding Information:
The research described in this paper was financially supported by the National Natural Science Foundation of China (51678474, 52278213), the Natural Science Basic Research Plan in Shaanxi Province of China (2022JM-189), and the China Scholarship Council (202108610187). Any options, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the sponsors.
Publisher Copyright:
© 2023 COMPDYN Proceedings. All rights reserved
PY - 2023/10
Y1 - 2023/10
N2 - A resilient system comprised of a high-strength moment-resisting steel frame (HS-MRF) and self-centering steel plate shear walls (SC-SPSWs) has been proposed to address the issue of frame expansion. The system's steady-state dynamic responses were analysed using an analytical solution of a single-degree-of-freedom nonlinear oscillator under harmonic excitation, solved via the method of slowly varying parameters. A stability analysis was also conducted to assess the behaviour of singular points. The hysteretic model for the proposed structure is a combination of validated bilinear, self-centering, and pinching hysteresis, representing the high-strength frame, self-centering frame, and steel plate shear wall, respectively. The results indicate that increasing the proportion of bilinear hysteresis has minimal impact on resonance but can decrease nonlinearity for lower excitation intensities. However, for higher intensities, increasing the bilinear hysteresis can significantly decrease peak responses and reduce both the jump and unbounded phenomena. Most of the unstable responses can be divided into four zones, and the unstable regions are greatly influenced by the ratio of hysteretic models. This steady-state dynamic analysis suggests that a well-designed mixture of high-strength moment-resisting steel frames and self-centering steel plate shear walls can bring a favourable seismic performance.
AB - A resilient system comprised of a high-strength moment-resisting steel frame (HS-MRF) and self-centering steel plate shear walls (SC-SPSWs) has been proposed to address the issue of frame expansion. The system's steady-state dynamic responses were analysed using an analytical solution of a single-degree-of-freedom nonlinear oscillator under harmonic excitation, solved via the method of slowly varying parameters. A stability analysis was also conducted to assess the behaviour of singular points. The hysteretic model for the proposed structure is a combination of validated bilinear, self-centering, and pinching hysteresis, representing the high-strength frame, self-centering frame, and steel plate shear wall, respectively. The results indicate that increasing the proportion of bilinear hysteresis has minimal impact on resonance but can decrease nonlinearity for lower excitation intensities. However, for higher intensities, increasing the bilinear hysteresis can significantly decrease peak responses and reduce both the jump and unbounded phenomena. Most of the unstable responses can be divided into four zones, and the unstable regions are greatly influenced by the ratio of hysteretic models. This steady-state dynamic analysis suggests that a well-designed mixture of high-strength moment-resisting steel frames and self-centering steel plate shear walls can bring a favourable seismic performance.
KW - Frame-wall system
KW - Frequency response
KW - Nonlinear dynamics
KW - Resilient structure
KW - Stability analysis
UR - http://www.scopus.com/inward/record.url?scp=85175839718&partnerID=8YFLogxK
U2 - 10.7712/120123.10720.21000
DO - 10.7712/120123.10720.21000
M3 - Conference contribution
VL - 1
T3 - COMPDYN Proceedings
SP - 4306
EP - 4318
BT - Proceedings of the 9th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
PB - National Technical University of Athens
T2 - 9th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering 2023
Y2 - 12 June 2023 through 14 June 2023
ER -